Challenge

Project 1 - 2D meshing on the instrumental Panel

SSoudip Hazra24 Jun 2021

Aim:

2D meshing on the instrumental Panel

Objective:

For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned.

Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with the reason.

S.No	Quality Criteria	Value
1	Target/Average length	4
2	Minimum Length	2
3	Maximum Length	6
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

Parent geometry

Import the model as step file inside the ANSA workbench

Perform topological check from the cons module

fig 1

Mid surfacing:

Extract the mid surface region with the offset command in cons tab.

Assign thickness to different regions of mid surfaces.

Set property ID to different regions.

fig 2

Mid surfacing of instrument panel outer cover:

fig 3

Mid surfacing of external ribs:

fig 4

Mid surfacing of side ribs:

fig 5

Mid surfacing of ribs:

fig 6

Mid surfacing of mid ribs:

fig 7

Mid surfacing of inclined ribs:

fig 8

fig 9

Mid surfacing of outer ribs:

fig 10

Mid surfacing of cylindrical ribs:

fig 11

Assembled view of mid surfacing of the entire component

fig 12

Meshing

From the mesh module select the perimeter option

Define the length by selecting the entire perimeter or macros. Give a target length to distribute the cons evenly.

The quality checks criteria are given as

S.No	Quality Criteria	Value
1	Target/Average length	4
2	Minimum Length	2
3	Maximum Length	6
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15